Tongue brush



FIG. 1 is a top plan view of a tongue brush showing my new design;

FIG. 2 is a side elevational view thereof, the opposite side being identical thereto;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is an end elevational view thereof;

FIG. 5 is an elevational view of the opposite end thereof;

FIG. 6 is a top plan view of a second embodiment thereof. 

The ornamental design for a tongue brush, as shown and described. 